 
              (asg "PublicSlaveServerGroup"
                   {:image_id current-coreos-ami
-                   :instance_type "m4.xlarge"
+                   :instance_type "m4.large"
                    :sgs ["public-slave-security-group"]
                    :role "slave-role"
                    :public_ip true

                                                             :internal-lb-dns (output-of "aws_elb" "InternalMasterLoadBalancer" "dns_name")
                                                             :fallback-dns (vpc/fallback-dns vpc/vpc-cidr-block)})
                   :root_block_device {:volume_size 20}
                   :max_size 3
                   :min_size 1
                   :health_check_type "ELB"
                   :health_check_grace_period 20
                   :subnets public-subnets
                   :elb {:health_check {:healthy_threshold 2


             (asg "MasterServerGroup"
                  {:image_id current-coreos-ami
                   :instance_type "m4.large"
                   :sgs ["master-security-group", "admin-security-group"]
                   :role "master-role"
                   :public_ip true
